Applications are invited for a temporary post of a Post-doctoral Research Fellow Level 1 within UCD School of Agriculture and Food Science. A Post Doctoral is required to support research activities in the field of ruminant livestock production and enteric methane emissions. The focus of this project is to determine the impact of sward type on performance and environmental impact of grazing beef cattle with a specific focus on the impacts of enhanced sward botanical diversity of rumen fermentation and enteric methane emissions including the development of methane emissions factors. Irish livestock production systems are predominantly pasture based and until recently sown pastures have been predominantly ryegrass monocultures. Such systems, while offering many competitive advantages from a feed cost perspective have a heavy reliance on fertiliser nitrogen application and are associated with losses of nitrogen to the wider environment. Recent work by our team has highlighted the potential of diverse swards (Multispecies swards) to enhance animal and sward performance from lower levels of fertiliser nitrogen. This study will quantify the impacts of diverse swards on enteric methane emissions including the development of methane emissions factors for grazing beef cattle. The primary responsibilities within the role will relate to animal husbandry and handling, measurement and analysis of enteric methane emissions data and measurement of rumen fermentation variables with a concurrent role in managing the beef production systems and the UCD Lyons Long-term grazing platform. Salary: €46,306 per annum Closing date: 12:00 noon (local Irish time) on 09/01/2026 Applications must be submitted by the closing date and time specified. Any applications which are still in progress at the closing time of 12:00 noon (Local Irish Time) on the specified closing date will be cancelled automatically by the system. UCD are unable to accept late applications. UCD do not require assistance from Recruitment Agencies. Any CV's submitted by Recruitment Agencies will be returned. The PD1 position is intended for early stage researchers, either just after completion of a PhD or for someone entering a new area for the first time. If you have already completed your PD1 stage in UCD or will soon complete a PD1, or you are an external applicant whose total Postdoctoral experience, inclusive of the duration of the advertised post, would exceed 4 years, you should not apply and should refer to PD2 posts instead. To be considered for this role you will be redirected to and must complete the application process on our careers page. To start the process click the Apply button below to Login/Register.